Integrated Workpiece Scanning for Adaptive CAM Toolpaths

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Solution Overview

Problem

Current computer-aided manufacturing (CAM) systems rely on idealized models and cannot respond to unexpected material changes during the manufacturing process, as they require precise matching of theoretical envelopes with actual materials and lack real-time scanning capabilities.

Innovation Solution

A CAM system integrated with a scanner that obtains scan data of the workpiece, generates a digital model, and adjusts tool paths dynamically to adapt to changes in the material, allowing for real-time verification of manufacturing operations.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If current CAM systems use idealized models and theoretical envelopes, then manufacturing process is simple and fast, but manufacturing precision deteriorates because actual materials do not precisely match theoretical dimensions

Engineering Contradiction:
Improvedimensional accuracyVSAvoidsystem complexity
Core Design Contradiction:
Manufacturing precisionVSDevice complexity

Solution Approach 1:

The system performs preliminary scanning of the workpiece before manufacturing to capture actual dimensional data, creating a digital model that reflects real material variations. This preliminary action allows the system to plan and adjust toolpaths in advance based on measured deviations, rather than discovering them during manufacturing.

Inventive Principle:
Principle #10Preliminary action

Solution Approach 2:

The system implements feedback by comparing actual workpiece dimensions (obtained through scanning) against theoretical envelope dimensions, then using this information to adjust toolpaths dynamically. This closed-loop approach ensures that manufacturing precision is maintained despite material variations.

Inventive Principle:
Principle #23Feedback

2Adaptability or versatility

If current CAM systems rely on fixed theoretical envelopes, then programming is straightforward, but adaptability deteriorates when unexpected material changes occur during manufacturing

Engineering Contradiction:
Improvematerial variation toleranceVSAvoidmanufacturing speed
Core Design Contradiction:
Adaptability or versatilityVSProductivity

Solution Approach 1:

The system transitions from static, pre-programmed toolpaths based on theoretical envelopes to dynamic toolpaths that are generated and adjusted in real-time based on actual workpiece geometry. This allows the manufacturing process to adapt to material variations while maintaining efficiency through automated real-time adjustments.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The system changes key parameters including toolpath coordinates, cutting depths, and feed rates based on actual measured dimensions of the workpiece. These parameter adjustments are calculated automatically to compensate for material variations while optimizing manufacturing speed.

Inventive Principle:
Principle #35Parameter changes

3Productivity

If current CAM systems use separate CAD and CAM programs, then software flexibility is high, but device complexity increases and integration efficiency decreases

Engineering Contradiction:
Improveintegration efficiencyVSAvoidsoftware integration complexity
Core Design Contradiction:
ProductivityVSDevice complexity

Solution Approach 1:

The system merges scanning, digital modeling, toolpath generation, and manufacturing control into a single integrated CAM platform. This consolidation eliminates data transfer interfaces between separate CAD and CAM systems, reducing integration complexity and improving overall efficiency while maintaining software flexibility.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS20240353814A1Systems and methods for computer aided manufacturing using an integrated scanner
Publication Date: 2024.10.24 PRODUCT DEVELOPMENT FACTORY INC
  • US20240353814A1 patent drawing
  • US20240353814A1 patent drawing
  • US20240353814A1 patent drawing

AI summary

Systems and methods of computer aided manufacturing are disclosed. A computer aided manufacturing device includes a tool operable to perform a manufacturing operation within a working area. A scanner obtains scan data corresponding to a portion of the working area. A processor is configured to obtain scan data of a workpiece positioned within the working area, generate a digital model of the workpiece, generate a tool path for the tool based on the digital model, operate the computer aided manufacturing system to perform the at least one manufacturing operation according to the at least one tool path to generate a modified workpiece, obtain scan data of the modified workpiece, and verify the at least one manufacturing operation based on the scan data of the modified workpiece.